FourSquare Integration for WordPress allows you to view your last checkins either as a list or on Google Maps on Pages and Posts.
DynamicWP Featured Post is a free WordPress jQuery plugin that will list your featured post based on the post tag and displayed as a widget. The post will cycled automatically.
DukaPress can be used to build online shops quickly and easily. It is built to be both simple and elegant yet powerful and scalable.
Add image_src Meta Tag ensures your content has a relevant thumbnail when shared on social sites, by adding an image_src meta tag to your header which contains your post thumbnail image.
The AddToAny: Share/Bookmark/Email Button helps people share, bookmark, and email your posts and pages using any service, such as Facebook, Twitter, Google Buzz, Digg, Delicious, and well over 100 more social bookmarking and sharing sites.
The AddToAny: Subscribe Button helps people subscribe to your blog using any feed reader, such as Google Reader, My Yahoo!, Netvibes, Windows Live, and all other RSS readers.
Fast and Secure Contact Form for WordPress lets your visitors send you a quick E-mail message and blocks all common spammer tactics.
Viper’s Video Quicktags allows you to simply click one of the new buttons that this plugin adds to the write screen (rich editor included) and then paste the URL that the video is located at into the prompt box. You can fully configure how the videos are displayed and much more.